Blog URL structure, is this wrong

Hi there,

I'm going back and forth with dev over the URL structure of our new blog. First I requested a subdirectory, which due to tech reasons we had to move to a subdomain, now they are suggesting the following URL structure:

'mydomainname/blog-name/gb/en/category/postname'

The issue I have is with having the country and language identifier after the blog-name
For the rest of the site we always have our URLs as

'mydomainname/gb/en/remainder-of-url'

What do you think, will having a URL 'mydomainname/blog-name/gb/en/category/postname' cause any SEO issues
Would you go with this URL structure?